<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 试图容器 -->
    <el-card class="box-card">
      <el-row :gutter="20">
        <el-col :span="8">
          <!-- 搜索区域 按钮 -->
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getUserList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUserList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true">
            添加用户</el-button
          >
        </el-col>
      </el-row>
      <!-- 用户列表区域 -->
      <el-table :data="userlist" stripe border>
        <el-table-column
          label="#"
          type="index"
          :index="rowIndex"
        ></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>

        <el-table-column label="状态" prop="mg_state">
          <!-- 同过template模板作用域插槽的形式填充 开关条 -->
          <template slot-scope="scope">
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStateChanged(scope.row)"
            >
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-button
              @click="showEditDialog(scope.row.id)"
              type="primary"
              icon="el-icon-edit"
              size="mini"
            ></el-button>
            <!-- 删除按钮 -->
            <el-button
              @click="removeUserById(scope.row.id)"
              type="danger"
              icon="el-icon-delete"
              size="mini"
            ></el-button>
            <!-- 分配角色按钮 -->
            <el-tooltip
              effect="dark"
              content="分配角色"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                @click="setRole(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 3, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>
    <!--添加用户的对话框 弹出框 -->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="50%"
      @close="addDialogClosed"
    >
      <!-- 内容主体区域 -->
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!--  @click="addDialogVisible = false" -->
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 修改对话框 -->

    <el-dialog
      @close="editDialogClosed"
      title="修改用户"
      :visible.sync="editDialogVisible"
      width="50%"
    >
      <!-- 修改表单主体 -->
      <el-form
        ref="editFormRef"
        :model="editForm"
        label-width="70px"
        :rules="editFormRules"
      >
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <!-- 底部按钮 -->
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 分配角色的对话框 -->
    <el-dialog
      title="分配角色"
      :visible.sync="setRoleDialogVisible"
      width="50%"
      @close="setRoleDialogClosed"
    >
      <div>
        <p>当前的用户：{{ userInfo.username }}</p>
        <p>当前的角色：{{ userInfo.role_name }}</p>
        <p>
          分配角色：
          <el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option
              v-for="item in rolesList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id"
            ></el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  name: "Users",
  data() {
    // 验证邮箱的规则
    var checkEmail = (rule, value, cb) => {
      // 验证邮箱的正则表达式
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/;
      if (regEmail.test(value)) {
        //合法的邮箱
        return cb();
      }
      cb(new Error("请输入合法的邮箱"));
    };
    // 验证手机号的规则
    var checkMobile = (rule, value, cb) => {
      // 验证手机的正则表达式
      const regMobile = /^(0|86|17951)?(13[0-9]|15[0123456789]|17[678]|18[0-9]|14[57])[0-9]{8}$/;
      if (regMobile.test(value)) {
        return cb();
      }
      cb(new Error("请输入合法的手机号"));
    };
    return {
      // 获取用户列表请求的参数
      // getUserList:'',
      editForm: {},
      editDialogVisible: false,
      queryInfo: {
        query: "",
        pagenum: 1,
        // 每页显示条目个数
        pagesize: 2,
      },
      userlist: [],
      total: 0,
      //   控制添加用户对话框的显示与隐藏
      addDialogVisible: false,
      //添加用户表单是数据对象
      addForm: {
        username: "",
        password: "",
        email: "",
        mobile: "",
      },
      // 添加用户表单的验证对象
      addFormRules: {
        username: [
          { required: true, message: "请输入用户名", trigger: "blur" },
          {
            min: 3,
            max: 10,
            message: "长度在 3 到 10 个字符",
            trigger: "blur",
          },
        ],
        password: [
          { required: true, message: "请输入密码", trigger: "blur" },
          { min: 6, max: 15, message: "长度在6 到 15 个字符", trigger: "blur" },
        ],
        email: [
          { required: true, message: "请输入邮箱", trigger: "blur" },
          { validator: checkEmail, trigger: "blur" },
        ],
        mobile: [
          { required: true, message: "请输入手机号", trigger: "blur" },
          { validator: checkMobile, trigger: "blur" },
        ],
      },
      // 修改表单的验证规则对象
      editFormRules: {
        email: [
          { required: true, message: "请输入邮箱", trigger: "blur" },
          { validator: checkEmail, trigger: "blur" },
        ],
        mobile: [
          { required: true, message: "请输入手机号", trigger: "blur" },
          { validator: checkMobile, trigger: "blur" },
        ],
      },
      // 控制分配角色对话框的显示与隐藏
      setRoleDialogVisible: false,
      // 需要被分配角色的用户信息
      userInfo: {},
      // 所有角色的数据列表
      rolesList: [],
      // 以选中的角色id
      selectedRoleId: "",
    };
  },
  created() {
    this.getUserList();
  },
  methods: {
    // 获取用户列表的请求方法
    async getUserList() {
      const { data: res } = await this.$http.get("users", {
        params: this.queryInfo,
      });
      if (res.meta.status !== 200)
        return this.$message.error("获取用户列表失败");
      //   console.log(res);
      this.userlist = res.data.users;
      this.total = res.data.total;
    },
    // 一页实现的数据条数 发生变化时触发
    handleSizeChange(val) {
      // console.log(`每页 ${val} 条`);
      this.queryInfo.pagesize = val;
      this.getUserList();
    },
    //   翻页操作时触发
    handleCurrentChange(val) {
      // console.log(`当前页: ${val}`);
      this.queryInfo.pagenum = val;
      this.getUserList();
    },
    //   监听switch开关状态的改变
    async userStateChanged(userinfo) {
      console.log(userinfo);
      const { data: res } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      );
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state;
        return this.$message.error("更新用户状态失败");
      }
      this.$message.success("更新用户状态成功");
    },
    // 监听关闭对话框的关闭事件
    addDialogClosed() {
      this.$refs.addFormRef.resetFields();
    },
    // 点击按钮添加新用户
    addUser() {
      this.$refs.addFormRef.validate(async (valid) => {
        if (!valid) return;
        //  this.$message.error("请填写正确的内容");
        const { data: res } = await this.$http.post("users", this.addForm);
        // console.log(res);
        if (res.meta.status !== 201) {
          return this.$message.error("添加用户失败");
        }
        this.$message.success("添加用户成功");
        // 隐藏对话框
        this.addDialogVisible = false;
        // 重新获取用户列表
        this.getUserList();
      });
    },
    // 展示编辑用户的对话框
    async showEditDialog(id) {
      // this.editDialogVisible=true
      const { data: res } = await this.$http.get("users/" + id);
      if (res.meta.status != 200) {
        return this.$message.error("查询用户信息失败");
      }

      this.editForm = res.data;
      this.editDialogVisible = true;
    },
    // 监听修改用户对话框 的关闭事件
    editDialogClosed() {
      this.$refs.editFormRef.resetFields();
    },
    // 修改用户信息并提交
    editUserInfo() {
      this.$refs.editFormRef.validate(async (valid) => {
        if (!valid) return;
        // 发起修改用户信息的请求
        const { data: res } = await this.$http.put(
          "users/" + this.editForm.id,
          {
            email: this.editForm.email,
            mobile: this.editForm.mobile,
          }
        );
        if (res.meta.status !== 200) {
          return this.$message.error("更新用户失败");
        }
        // 关闭对话框
        this.editDialogVisible = false;
        // 刷新数据列表
        this.getUserList();
        // 提示修改成功
        this.$message.success("更新用户成功");
      });
    },
    // 点击删除按钮 根据id 删除用户
    async removeUserById(id) {
      const confirm = await this.$confirm(
        "此操作将永久删除该文件, 是否继续?",
        "提示",
        {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning",
        }
      ).catch((err) => err);
      if (confirm !== "confirm") return this.$message.info("取消删除");
      const { data: res } = await this.$http.delete("users/" + id);
      if (res.meta.status !== 200) {
        return this.$message.error("删除用户失败");
      }
      this.$message.success("删除用户成功");
      //判断 删除数据前 只有一条数据 并且当前不是第一页时
      if (this.userlist.length === 1 && this.queryInfo.pagenum > 1) {
        this.queryInfo.pagenum -= 1; //往前跳一页
      }

      // 重新刷新列表数据
      this.getUserList();
    },
    //展示分配角色的对话框
    async setRole(userInfo) {
      this.userInfo = userInfo;
      // zai 在展示之前获取所有的角色列表
      const { data: res } = await this.$http.get("roles");
      if (res.meta.status !== 200) {
        return this.$message.error("获取角色失败");
      }
      this.rolesList = res.data;
      this.setRoleDialogVisible = true;
    },
    // 点击按按钮分配角色
    async saveRoleInfo() {
      if (!this.selectedRoleId) {
        return this.$message.error("请选择要分配的角色");
      }
      const { data: res } = await this.$http.put(
        `users/${this.userInfo.id}/role`,
        {
          rid: this.selectedRoleId,
        }
      );
      // console.log(res);
      if (res.meta.status !== 200) {
        return this.$message("更新角色失败");
      }
      this.$message.success("更新角色成功");
      this.getUserList();
      this.setRoleDialogVisible = false;
    },
    // 监听分配角色对话框的关闭事件
    setRoleDialogClosed() {
      (this.selectedRoleId = ""), (this.userInfo = {});
    },
  },
  computed: {
    //计算属性 (当前的页码数量-1 )*当前的页面+1
    rowIndex() {
      return (this.queryInfo.pagenum - 1) * this.queryInfo.pagesize + 1;
    },
  },
};
</script>
